python爬虫获取下一页
Posted brady-wang
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了python爬虫获取下一页相关的知识，希望对你有一定的参考价值。
from time import sleep import faker import requests from lxml import etree fake = faker.Faker() base_url = "http://angelimg.spbeen.com" def get_next_link(url): content = downloadHtml(url) html = etree.HTML(content) next_url = html.xpath("//a[@class=‘ch next‘]/@href") if next_url: return base_url + next_url[0] else: return False def downloadHtml(ur): user_agent = fake.user_agent() headers = {‘User-Agent‘: user_agent,"Referer":"http://angelimg.spbeen.com/"} response = requests.get(url, headers=headers) return response.text def getImgUrl(content): html = etree.HTML(content) img_url = html.xpath(‘//*[@id="content"]/a/img/@src‘) title = html.xpath(".//div[‘@class=article‘]/h2/text()") return img_url[0],title[0] def saveImg(title,img_url): if img_url is not None and title is not None: with open("txt/"+str(title)+".jpg",‘wb‘) as f: user_agent = fake.user_agent() headers = {‘User-Agent‘: user_agent,"Referer":"http://angelimg.spbeen.com/"} content = requests.get(img_url, headers=headers) #request_view(content) f.write(content.content) f.close() def request_view(response): import webbrowser request_url = response.url base_url = ‘<head><base href="%s">‘ %(request_url) base_url = base_url.encode() content = response.content.replace(b"<head>",base_url) tem_html = open(‘tmp.html‘,‘wb‘) tem_html.write(content) tem_html.close() webbrowser.open_new_tab(‘tmp.html‘) def crawl_img(url): content = downloadHtml(url) res = getImgUrl(content) title = res[1] img_url = res[0] saveImg(title,img_url) if __name__ == "__main__": url = "http://angelimg.spbeen.com/ang/4968/1" while url: print(url) crawl_img(url) url = get_next_link(url)
还有种方式，获取到总页数，再循环
以上是关于python爬虫获取下一页的主要内容，如果未能解决你的问题，请参考以下文章
nodejs爬虫笔记---利用nightmare模拟点击下一页
使用python爬虫时，遇到多页，需要翻页，下一页时怎么处理